Perphenazine is an antipsychotic drug used in treating schizophrenia. It modulates antioxidant levels and helps in the management of oxidative injury in schizophrenia. However, it is less effective than the clozapine drug group in improving response to oxidative injury.;Perphenazine is an antipsychotic drug used in treating schizophrenia. It modulates antioxidant levels and helps in the management of oxidative injury in schizophrenia. However, it is less effective than the clozapine drug group in improving response to oxidative injury.